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AOBEN 21V Cordless Impact Wrench, 400N.m Max vs Milwaukee Electric - M18 Fuel 1/2 HIGH Torque

Updated July 2026 — AOBEN 21V Cordless Impact Wrench, 400N.m Max wins on rank and battery, Milwaukee Electric - M18 Fuel 1/2 HIGH Torque wins on torque and price.

The AOBEN offers great value for casual users, while the Milwaukee excels in professional applications.

Why AOBEN 21V Cordless Impact Wrench, 400N.m Max is better

Price

AOBEN is significantly cheaper at $53.99.

Weight

AOBEN is designed to be lightweight for ease of use.

Basic Tasks

AOBEN is suitable for everyday household maintenance.

Why Milwaukee Electric - M18 Fuel 1/2 HIGH Torque is better

Torque

Milwaukee delivers 1,000 ft-lbs of fastening torque.

Durability

Milwaukee's build quality is aimed at heavy-duty use.

Features

Milwaukee includes advanced features like REDLINK PLUS intelligence.

Overall score

AOBEN 21V Cordless Impact Wrench, 400N.m Max
65
Milwaukee Electric - M18 Fuel 1/2 HIGH Torque
90

Specifications

SpecAOBEN 21V Cordless Impact Wrench, 400N.m MaxMilwaukee Electric - M18 Fuel 1/2 HIGH Torque
Max Torque400 N.m1000 ft-lbs
Speed ControlVariable4-mode
Battery Type4.0Ah Li-ionM18 REDLITHIUM
WeightLightweightCompact
UsageDIY & LightProfessional

Dimension comparison

AOBEN 21V Cordless Impact Wrench, 400N.m MaxMilwaukee Electric - M18 Fuel 1/2 HIGH Torque

Overview of the AOBEN 21V Cordless Impact Wrench

The AOBEN 21V Cordless Impact Wrench is priced at $53.99, making it an economical choice for DIY enthusiasts and light construction projects. It boasts a maximum torque of 400 N.m and a speed of 3000 RPM, which is suitable for various tasks, from household maintenance to product assembly. This model comes equipped with a 4.0Ah lithium-ion battery, six driver sockets, and a fast charger, providing a comprehensive package for users looking to tackle a range of jobs efficiently.

Overview of the Milwaukee M18 Fuel Impact Wrench

The Milwaukee Electric M18 Fuel 1/2 High Torque Impact Wrench is significantly more expensive at $234.00, positioning it as a professional-grade tool. It delivers an impressive 1,000 ft-lbs of fastening torque and nut break torque, making it one of the most powerful options in its class. Additionally, it features a brushless motor and a four-mode control system, allowing users to adjust speeds up to 3,000 RPM. This tool is designed for durability and ease of use, particularly in tight spaces, making it ideal for heavy-duty applications.

Performance Comparison

In terms of performance, the Milwaukee outshines the AOBEN with its higher torque output of 1,000 ft-lbs, compared to the AOBEN's 400 N.m. This translates to superior fastening capabilities, especially for demanding tasks. The Milwaukee's brushless motor and REDLINK PLUS intelligence provide enhanced performance and protection against overloads, making it a reliable option for professionals. However, the AOBEN still offers a respectable performance level for casual users, with a maximum speed of 3000 RPM that can handle most household tasks efficiently.

Battery Life and Charging

Battery life is a critical factor when considering an impact wrench. The AOBEN features a 4.0Ah battery that promises twice the power of ordinary models, allowing for extended use without frequent recharging. It can be fully charged in a few hours, which is convenient for users who need to keep working without long interruptions. In contrast, the Milwaukee's performance is optimized with its M18 REDLITHIUM batteries, enhancing its overall efficiency and runtime—though specific battery capacity details aren’t provided. Users who require consistent, high-power output may appreciate the Milwaukee's advanced battery technology, despite the higher upfront cost.

Ergonomics and Design

The AOBEN is designed with user comfort in mind, featuring a lightweight construction and an ergonomic soft grip handle. This design helps reduce fatigue during prolonged use, making it suitable for tasks that require extended periods of operation. While specific weight details are not given, the emphasis on comfort suggests it is manageable for most users. The Milwaukee, on the other hand, also boasts a compact and ergonomic design, tailored for optimal control in various applications. Its robust build quality is aimed at professionals who might need to use the tool in challenging environments.

Versatility in Applications

The AOBEN is versatile enough for daily household maintenance, light construction projects, and motorcycle maintenance, thanks to its variable speed control. Users can easily adjust the speed based on the task at hand, making it a practical choice for a range of applications. The Milwaukee excels in more demanding environments, allowing for quick removal speeds and compatibility with all M18 batteries and chargers. Its higher torque and durability make it suitable for heavy-duty work, including automotive and construction applications.

Price Comparison

The AOBEN is approximately 77% cheaper than the Milwaukee, with a price difference of $180.01. At $53.99, the AOBEN appeals to budget-conscious consumers who need a reliable impact wrench for basic tasks. Meanwhile, the Milwaukee’s price of $234.00 reflects its professional-grade capabilities and advanced features, appealing to those willing to invest more for superior performance and longevity. This significant price gap highlights the different target markets for each product.

Which should you buy?

Ultimately, the choice between the AOBEN 21V Cordless Impact Wrench and the Milwaukee M18 Fuel Impact Wrench comes down to your specific needs and budget. If you are a DIY enthusiast or someone who requires a reliable tool for light maintenance tasks, the AOBEN offers great value at a fraction of the cost. However, if you are a professional who frequently tackles heavy-duty applications and demands high torque and durability, the Milwaukee is worth the investment. Each tool has its merits, so consider what features are most important for your projects before making a decision.